4.15-rc2 compile problem right away on bzImage SOLVED

wrc1944 · Last edited by wrc1944 on Tue Dec 05, 2017 4:50 pm; edited 1 time in total

Since I run Ryzen systems, I was eager to give kernel 4.15-rc2 a try, but ran into this in first 70 lines, using either make xconfig, make gconfig, menuconfig.
Haven't had a basic kernel compile fail in many years. ("kern" is just my alias for "make bzImage && make modules && make modules_install") Used my 4.14.3 config file- only difference is the rc2 uses generic x_64 as no gcc opts patch was applied.

Hu · Moderator Joined: 06 Mar 2007 Posts: 21644

What are the permissions on that file? What mount options were used on the filesystem that contains /usr/src/linux? Why are you compiling an -rc kernel as root?

wrc1944 · Posted: Tue Dec 05, 2017 8:03 am Post subject:

Hu,
Thanks much for looking at this.

Back in 2002 when I first started with Gentoo, and I used a separate /home partition, and a /home/wrc/kern directory to compile my kernels in, and then change to root for modules_install, and cp arch/x86/boot/bzImage /boot/kernel-whatever. That went on for 4-5 years, and then I started using gentoo-sources, and since emerge put the source directories in /usr/src/ I just started compiling all my kernels there, as root, including any rc's and other random patched testing kernels.

I must have compiled many hundreds of all kinds of exotic kernels in addition to keeping up with virtually every release and version in the last 15 years, as root. Saved me the changing to root for the make modules_install step when compiling in /home/wrc/kern . So yes, what confused me is if I'm compiling as root in the same way I've done for 15 years, why suddenly on this 4.15-rc1 and rc2 would they complain about permissions?

For the last file before make[2]: execvp: ./sync-check.sh: Permission denied, which is: /usr/src/linux-4.15-rc2/tools/objtool/objtool-in.o and the permissions are :
Owner: root (root)
Access: read & write
Group: root
Access: read only
Otheres: read only

FWIW, Makefile, line 47:

Lucretia · n00b Joined: 15 Oct 2002 Posts: 69

Same issue here.

wrc1944 · Posted: Tue Dec 05, 2017 4:49 pm Post subject:

Lucretia,
Thanks very much- worked nicely.

Now I'll know what to do in similar situations.
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